Understanding the Dependent Variable
This worksheet helps grade 10 students understand and identify dependent variables in scientific experiments.
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Understanding the Dependent Variable
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Read each question carefully and identify the dependent variable in the described scientific experiments. Remember, the dependent variable is the factor that is measured or observed and is expected to change in response to the independent variable.
1. A scientist is testing how different amounts of fertilizer affect the height of bean plants. What is the dependent variable in this experiment?
The amount of fertilizer
The type of bean plant
The height of the bean plants
The amount of water given to the plants
2. A student wants to see if playing classical music improves students' test scores. What is the dependent variable?
The type of music played
The students' test scores
The number of students
The time of day the test is taken
3. In an experiment investigating how temperature affects the rate of a chemical reaction, the is the dependent variable.
4. If a researcher studies the effect of different teaching methods on student engagement, the student engagement level is the .
5. Describe an experiment where the amount of sunlight a plant receives is the independent variable. What would be a suitable dependent variable for this experiment?
6. A food scientist is testing a new recipe for bread. They vary the amount of yeast used and measure the volume of the baked bread. Identify the independent and dependent variables in this scenario.
7. The dependent variable is the factor that is intentionally changed by the experimenter.
True
False
8. In a well-designed experiment, there should only be one dependent variable.
True
False
9. Examine the chromatography setup below. If a scientist is testing how different solvents affect the separation of pigments in a plant extract, what would be the dependent variable in this experiment?
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